Equivalent & Substitute Parts for V8ZA05

Part Overview

The V8ZA05 is an 8.5 V, 50 A Transient Voltage Suppressor (TVS) varistor manufactured by Littelfuse Inc., designed for through-hole mounting in a 5mm disc package. This component is classified as obsolete, which necessitates identification of active equivalent parts to maintain design continuity and ensure supply chain availability for new production and field replacements.

Substiute Parts

V8ZA05

Littelfuse Inc.In Stock: 791V8ZA05 Datasheet

Current PartRFQ

V8ZA05P

Littelfuse Inc.In Stock: 9039V8ZA05P Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the V8ZA05 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications for varistor voltage range (6 V minimum to 11 V maximum, 8.5 V typical), surge current rating (50 A), voltage ratings (5.5 V DC maximum, 4 V AC maximum), energy dissipation (0.1 J), through-hole mounting configuration, and 5mm disc package geometry. These parameters ensure functional and physical compatibility within the original circuit design.

Parameter Comparison

Engineering Selection Recommendations

The V8ZA05P is the direct equivalent substitute for the obsolete V8ZA05. Both components are manufactured by Littelfuse Inc. within the ZA series and share identical electrical and mechanical specifications across all critical parameters. The V8ZA05P maintains active product status, ensuring ongoing availability and supply chain support. Both parts comply with ROHS3 requirements and carry MSL rating 1 (unlimited moisture sensitivity level). The V8ZA05P is available in bulk packaging, whereas the original V8ZA05 packaging specification was not provided. Selection of the V8ZA05P eliminates obsolescence risk while preserving complete functional and physical compatibility with existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the V8ZA05P be used as a direct replacement for the V8ZA05?

A: Yes. The V8ZA05P is electrically and mechanically identical to the V8ZA05 across all specified parameters, including varistor voltage (8.5 V typical), surge current (50 A), voltage ratings, energy dissipation, mounting type (through hole), and package geometry (5mm disc). The V8ZA05P is the designated substitute part.

Q: What is the primary reason for substitution?

A: The V8ZA05 is classified as obsolete. The V8ZA05P is the active equivalent that maintains identical specifications while ensuring continued supply availability.

Q: Are there any compliance or certification differences?

A: Both parts are ROHS3 compliant and carry identical MSL ratings (1 - Unlimited). No compliance differences exist between the two parts.

Q: Does packaging differ between the two parts?

A: The V8ZA05P is supplied in bulk packaging. Original packaging information for the V8ZA05 was not specified in the technical data. Both parts use identical 5mm disc package geometry suitable for through-hole mounting.

Q: Are there any temperature or operating range differences?

A: No. Both parts operate across the identical temperature range of -55°C to 85°C and maintain all electrical specifications within this range.